feat: make it possible to set disable_response_storage = true in config.toml (#714)

https://github.com/openai/codex/pull/642 introduced support for the
`--disable-response-storage` flag, but if you are a ZDR customer, it is
tedious to set this every time, so this PR makes it possible to set this
once in `config.toml` and be done with it.

Incidentally, this tidies things up such that now `init_codex()` takes
only one parameter: `Config`.

codex-rs/tui/src/app.rs

@@ -37,7 +37,6 @@ impl App<'_> {
         initial_prompt: Option<String>,
         show_git_warning: bool,
         initial_images: Vec<std::path::PathBuf>,
-        disable_response_storage: bool,
     ) -> Self {
         let (app_event_tx, app_event_rx) = channel();
         let scroll_event_helper = ScrollEventHelper::new(app_event_tx.clone());
@@ -81,7 +80,6 @@ impl App<'_> {
             app_event_tx.clone(),
             initial_prompt.clone(),
             initial_images,
-            disable_response_storage,
         );
 
         let app_state = if show_git_warning {

codex-rs/tui/src/chatwidget.rs

@@ -49,7 +49,6 @@ impl ChatWidget<'_> {
         app_event_tx: Sender<AppEvent>,
         initial_prompt: Option<String>,
         initial_images: Vec<std::path::PathBuf>,
-        disable_response_storage: bool,
     ) -> Self {
         let (codex_op_tx, mut codex_op_rx) = unbounded_channel::<Op>();
 
@@ -62,15 +61,14 @@ impl ChatWidget<'_> {
         // Create the Codex asynchronously so the UI loads as quickly as possible.
         let config_for_agent_loop = config.clone();
         tokio::spawn(async move {
-            let (codex, session_event, _ctrl_c) =
-                match init_codex(config_for_agent_loop, disable_response_storage).await {
-                    Ok(vals) => vals,
-                    Err(e) => {
-                        // TODO: surface this error to the user.
-                        tracing::error!("failed to initialize codex: {e}");
-                        return;
-                    }
-                };
+            let (codex, session_event, _ctrl_c) = match init_codex(config_for_agent_loop).await {
+                Ok(vals) => vals,
+                Err(e) => {
+                    // TODO: surface this error to the user.
+                    tracing::error!("failed to initialize codex: {e}");
+                    return;
+                }
+            };
 
             // Forward the captured `SessionInitialized` event that was consumed
             // inside `init_codex()` so it can be rendered in the UI.

codex-rs/tui/src/lib.rs

@@ -39,6 +39,11 @@ pub fn run_main(cli: Cli) -> std::io::Result<()> {
             model: cli.model.clone(),
             approval_policy: cli.approval_policy.map(Into::into),
             sandbox_policy: cli.sandbox_policy.map(Into::into),
+            disable_response_storage: if cli.disable_response_storage {
+                Some(true)
+            } else {
+                None
+            },
         };
         #[allow(clippy::print_stderr)]
         match Config::load_with_overrides(overrides) {
@@ -134,19 +139,8 @@ fn run_ratatui_app(
     let mut terminal = tui::init()?;
     terminal.clear()?;
 
-    let Cli {
-        prompt,
-        images,
-        disable_response_storage,
-        ..
-    } = cli;
-    let mut app = App::new(
-        config,
-        prompt,
-        show_git_warning,
-        images,
-        disable_response_storage,
-    );
+    let Cli { prompt, images, .. } = cli;
+    let mut app = App::new(config.clone(), prompt, show_git_warning, images);
 
     // Bridge log receiver into the AppEvent channel so latest log lines update the UI.
     {